diff --git a/mpirxx.h b/mpirxx.h
index d16aa5d7..3ad1dcf6 100644
--- a/mpirxx.h
+++ b/mpirxx.h
@@ -40,7 +40,7 @@ along with the GNU MP Library.  If not, see http://www.gnu.org/licenses/.  */
 #include <string>
 #include <stdexcept>
 #include <cfloat>
-#include <gmp.h>
+#include <mpir.h>
 
 
 /**************** Function objects ****************/
diff --git a/tests/cxx/t-headers.cc b/tests/cxx/t-headers.cc
index 7d19170b..15382f2c 100644
--- a/tests/cxx/t-headers.cc
+++ b/tests/cxx/t-headers.cc
@@ -19,7 +19,6 @@ along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 MA 02110-1301, USA. */
 
-#include "mpir.h"
 #include "mpirxx.h"
 
 int